Java TextPaint.getTextBounds方法代码示例

import android.text.TextPaint; //导入方法依赖的package包/类
GifBadge(Context context) {
    if (bitmap == null) {
        final DisplayMetrics dm = context.getResources().getDisplayMetrics();
        final float density = dm.density;
        final float scaledDensity = dm.scaledDensity;
        final TextPaint textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint
                .SUBPIXEL_TEXT_FLAG);
        textPaint.setTypeface(Typeface.create(TYPEFACE, TYPEFACE_STYLE));
        textPaint.setTextSize(TEXT_SIZE * scaledDensity);

        final float padding = PADDING * density;
        final float cornerRadius = CORNER_RADIUS * density;
        final Rect textBounds = new Rect();
        textPaint.getTextBounds(GIF, 0, GIF.length(), textBounds);
        height = (int) (padding + textBounds.height() + padding);
        width = (int) (padding + textBounds.width() + padding);
        bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bitmap.setHasAlpha(true);
        final Canvas canvas = new Canvas(bitmap);
        final Paint backgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
        backgroundPaint.setColor(BACKGROUND_COLOR);
        canvas.drawRoundRect(0, 0, width, height, cornerRadius, cornerRadius,
                backgroundPaint);
        // punch out the word 'GIF', leaving transparency
        textPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
        canvas.drawText(GIF, padding, height - padding, textPaint);
    }
    paint = new Paint();
}
 

import android.text.TextPaint; //导入方法依赖的package包/类
public static int getStringWidth(TextView tv, String text) {
    Rect bounds = new Rect();
    TextPaint paint;

    paint = tv.getPaint();
    paint.getTextBounds(text, 0, text.length(), bounds);
    int width = bounds.width();

    return width;
}
 

import android.text.TextPaint; //导入方法依赖的package包/类
public CharView(Context context, TextPaint originalPaint, char letter) {
    super(context);
    this.letter = letter;
    this.originalPaint = originalPaint;
    layout = new StaticLayout(String.valueOf(letter),
            0, 1, originalPaint, 0, Layout.Alignment.ALIGN_NORMAL, 0f, 0f, false);
    originalPaint.getTextBounds(String.valueOf(letter), 0, 1, textBounds);
}
 

import android.text.TextPaint; //导入方法依赖的package包/类
private void drawBubble(Canvas canvas) {
    float left = 0;
    float top = 0;
    float right = mDataBean.mClickViewRect.width();
    float bottom = mDataBean.mClickViewRect.height();
    float midHeight = bottom / 2.0f;
    float midWidth = right / 2.0f;

    mDataBean.mPaint.setMaskFilter(null);
    mDataBean.mPaint.setColor(mDataBean.mClickView.getDragBackgroundColor());
    float offset = 0;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        offset = mDataBean.mClickViewRect.width() - ((float) mDataBean.mClickViewRect.width()) / 1.845f;
        canvas.drawArc(left + offset, top, right, bottom, -90, 180, true, mDataBean.mPaint);
        canvas.drawArc(left, top, right - offset, bottom, 90, 180, true, mDataBean.mPaint);
    } else {
        offset = mDataBean.mClickViewRect.width() - ((float) mDataBean.mClickViewRect.width()) / 1.35f;
        canvas.drawCircle(left + offset, midHeight, midHeight, mDataBean.mPaint);
        canvas.drawCircle(right - offset, midHeight, midHeight, mDataBean.mPaint);
    }
    float halfDrawWidth = (right - (left + offset)) / 2.0f;
    canvas.drawRect(halfDrawWidth, 0, right - halfDrawWidth, bottom, mDataBean.mPaint);
    TextPaint paint = mDataBean.mClickView.getPaint();
    String text = (String) mDataBean.mClickView.getText();
    float halfMeasureTextWidth = paint.measureText(text, 0, text.length()) / 2.0f;
    paint.getTextBounds(text, 0, text.length(), mTextBound);
    canvas.drawText(text, 0, text.length(), midWidth - halfMeasureTextWidth, midHeight + mTextBound.height() / 2.0f, paint);
}
 

import android.text.TextPaint; //导入方法依赖的package包/类
@SuppressWarnings("ResourceAsColor")
private Bitmap buildSrcFromName(final String firstChar, int w, int h) {
    if (w == Target.SIZE_ORIGINAL || w <= 0)
        w = 80;
    if (h == Target.SIZE_ORIGINAL || h <= 0)
        h = 80;

    final int size = Math.max(Math.min(Math.min(w, h), 220), 64);
    final float fontSize = size * 0.4f;
    log("firstChar:" + firstChar + " size:" + size + " fontSize:" + fontSize);

    Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.RGB_565);

    TextPaint paint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
    paint.setAntiAlias(true);
    paint.setDither(true);
    paint.setColor(Color.WHITE);
    paint.setTextAlign(Paint.Align.CENTER);
    paint.setTextSize(fontSize);
    paint.setTypeface(Typeface.SANS_SERIF);

    // check ASCII
    final int charNum = Character.getNumericValue(firstChar.charAt(0));
    if (charNum > 0 && charNum < 177) {
        Typeface typeface = getFont(getContext(), "Numans-Regular.otf");
        if (typeface != null)
            paint.setTypeface(typeface);
    }

    Rect rect = new Rect();
    paint.getTextBounds(firstChar, 0, 1, rect);
    int fontHeight = rect.height();
    log(rect.toString());

    int fontHalfH = fontHeight >> 1;
    int centerX = bitmap.getWidth() >> 1;
    int centerY = bitmap.getHeight() >> 1;

    Canvas canvas = new Canvas(bitmap);
    canvas.drawColor(getBackgroundColor(firstChar));
    canvas.drawText(firstChar, centerX, centerY + fontHalfH, paint);

    return bitmap;
}